Specialist Areas
Professional Qualifications
- Chartered Tax Advisor (CTA), Irish Tax Institute
- Chartered Accountant (ACA), Chartered Accountants Ireland
- Bachelor of Science in Finance, University College Cork
Experience
Tiernan is a Supervisor in the Business Services & Tax team with over four years of experience advising private clients, family groups, and privately owned businesses across a broad range of accounting, taxation, and business advisory matters. Dual-qualified as a Chartered Accountant (ACA) and Chartered Tax Advisor (CTA), he combines technical knowledge with practical commercial advice to help businesses and individuals achieve their financial objectives.
Prior to joining Prosperity, Tiernan managed a diverse portfolio of high-net-worth individuals, family groups, and private companies, providing both compliance and advisory services. His experience includes preparing financial statements and tax returns, supporting business restructures, succession planning initiatives, and advising clients through complex financial and commercial decisions.
Tiernan has experience supporting financial modelling, cashflow forecasting and business planning initiatives, helping clients better understand their financial position and future opportunities. Known for building trusted client relationships, Tiernan is committed to providing proactive, practical advice and supporting businesses and families through all stages of their growth and succession journey.
